15074554993 has 8 divisors (see below), whose sum is σ = 16350594120. Its totient is φ = 13841771520.

The previous prime is 15074554991. The next prime is 15074555131. The reversal of 15074554993 is 39945547051.

It can be written as a sum of positive squares in 4 ways, for example, as 2958489664 + 12116065329 = 54392^2 + 110073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15074554993 - 2¹ = 15074554991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15074554993.

It is not an unprimeable number, because it can be changed into a prime (15074554991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10813188 + ... + 10814581.

It is an arithmetic number, because the mean of its divisors is an integer number (2043824265).

Almost surely, 2^15074554993 is an apocalyptic number.

It is an amenable number.

15074554993 is a deficient number, since it is larger than the sum of its proper divisors (1276039127).

15074554993 is a wasteful number, since it uses less digits than its factorization.

15074554993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21627827.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 15074554993 in words is "fifteen billion, seventy-four million, five hundred fifty-four thousand, nine hundred ninety-three".